No self-respecting space dog would fail to answer a distress bark from the surface of a ruined planet. Puppies are in danger! Rescue them all as you rearrange the planet's surface with your swap-gun, a device that allows you to trade places with pieces of the world around you. Build bridges, block lasers, and uncover a sinister plot that we promise isn't completely given away by the title. Sound like a brain twister? Sure, but if a dog can do it...